If you don't already, I would suggest eating dinner together, at a table, without other distractions going on like the TV or cellphones. Start talking about your day, if anything interesting is going on at work, or if you're reading a really good book. Little things to just start conversations up again.

Also, perhaps make time every week to do things together. Perhaps go on a date night. Sit at home and play board games together. Go for walks together in the evenings.

I agree with Lee. Why not move both of your activities into the same room?

If she's not interested in seeing a therapist, why don't you see one on your own? They'll be able to help you with your feelings, come up with solutions, and help you improve your communication style. If you're fiancee sees that this is important enough to you to get you to see a therapist, maybe she'd be willing to come along to one of your sessions somewhere down the road.